The correct option is C 1604 A.D.
The sacred writings of spiritual poetry, set to musical ragas were completed by Guru Arjan Dev on 30th Aug 1604 and then first installed in Harmandir Sahib. At that time it was called the "Adi Granth." and did not contain the writings of Guru Teg Bahadur Ji which were added later by Guru Gobind Singh Ji in 1708. It is written in Gurmukhi Script.